This threader has a length of very flexible but strong wire with a loop at the end.
BOBBIN
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Stonfo Elite Bobbin Threader – Feathersmith Limited
Rite Bobbin Holders - Standard - Fly Tying Boutique
The Stonfo Elite Bobbin Threader is a premium quality, handy and time-saving tool to thread your fly tying bobbins. It saves time and eliminates the
Stonfo Elite Bobbin Threader
Fly tying bobbins
Bobbin Threader (No.2) - Stonfo - Fly Tying Boutique
Stonfo Elite Bobbin
Tiemco Bobbin Threader — The Flyfisher